Facebook CEO Mark Zuckerberg said in an interview this week he would like to create a safe and educational social networking environment for kids younger than 13. (According to Consumer Reports, 7.5 million such American kids already use Facebook by lying about their age.)

"That will be a fight we take on at some point," Zuckerberg reportedly said of the Children's Online Privacy Protection Act, which mandates parental permission and other protections for young users. And here we thought China was Facebook's next big controversy...